Access Control Bypass Affecting github.com/hashicorp/consul/agent/xds package, versions >=1.9.0 <1.20.1


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.04% (11th percentile)

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  • Snyk ID SNYK-GOLANG-GITHUBCOMHASHICORPCONSULAGENTXDS-8310962
  • published 31 Oct 2024
  • disclosed 29 Oct 2024
  • credit Unknown

How to fix?

Upgrade github.com/hashicorp/consul/agent/xds to version 1.20.1 or higher.

Overview

github.com/hashicorp/consul/agent/xds is a provides an implementation of a gRPC service that exports Envoy's xDS API for config discovery. Specifically we support the Aggregated Discovery Service (ADS) only as we control all config.

Affected versions of this package are vulnerable to Access Control Bypass due to a lack of header normalization while using Headers in L7 traffic intentions. By exploiting this, an attacker could bypass HTTP header based access rules.

CVSS Scores

version 4.0
version 3.1
Expand this section

Snyk

Recommended
6.9 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Attack Requirements (AT)
    None
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Confidentiality (VC)
    Low
  • Integrity (VI)
    Low
  • Availability (VA)
    None
  • Confidentiality (SC)
    None
  • Integrity (SI)
    None
  • Availability (SA)
    None